PRODUCT SPECIFICATIONS: M8 turnbuckle hook & eye, max length 11.3 inch, min length 7.4 inch, adjustable length: 3.9 inch, thread diameter: 0.29 inch. It weigh: 4.8 oz/120g (1pc) 440 LB CAPACITY: The M8 safely supports 440 lb working loads 304 STAINLESS STEEL: Lsqurel turnbuckle made with real 304 SS – 68.5% iron, 19% chromium, 9.5% nickel, 2% manganese, 0.8% silicon, 0.045% phosphorus, and 0.155% other elements. Rustproof in rain, humidity, and harsh weather. No cheap galvanized iron – built to last CABLE TENSIONER: These heavy-duty turnbuckles are suitable for tightening metal wires, steel cables, and ropes. They are easy to use—simply twist to increase or reduce tension, they allow for tightening the cable for a tight and tidy look. The M8 turnbuckle is compatible with lock nuts of 5/16 inch (M8) APPLICATIONS: The stainless steel turnbuckle is versatile and easy to use. These tensioner can be used for tightening fence wires, garden wires, cable railings, clotheslines, hanging tarps,